A reconfigurable entangling circuit on a photonic chip
Peter Shadbolt, Maria Rodas Verde, Alberto Peruzzo, Alberto Politi, Anthony Laing, Mirko Lobino, Jonathan C. F. Matthews, Jeremy L. O’Brien · 2011
We report a reconfigurable integrated photonic circuit with eight phase shifters. This device can generate and characterise entangled states, violate a Bell-type inequality with a continuum of partially entangled states, and generate one-qubit mixed states.